TY - BOOK AU - Walker,John L.B. TI - Classic works in RF engineering: combiners, couplers, transformers and magnetic materials T2 - Artech House microwave library SN - 1580530567 AV - TK6560 .C52 2006 PY - 2006/// CY - Boston PB - Artech House KW - Radio circuits KW - Design and construction KW - Radio frequency ER -